This package provides two applications, zita-a2j and zita-j2a. They allow one to use an ALSA device as a Jack client, to provide additional capture (a2j) or playback (j2a) channels.

Functionally these are equivalent to the alsa_in and alsa_out clients that come with Jack, but they provide much better audio quality. The resampling ratio will typically be stable within 1 PPM and change only very smoothly. Delay will be stable as well even under worse case conditions, e.g. the Jack client running near the end of the cycle.